9-Octadecynoic acid
Also known as: Stearolic acid, Octadec-9-ynoic acid, 9-stearolic acid, 9-ODYA, octadec-9-ynoic acid
9-Octadecynoic acid (CAS 506-24-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H32O2 and a molecular weight of 280.44500 g/mol. Key properties include a melting point of 46-47ºC, a boiling point of 405.2ºC at 760 mmHg, a density of 0.923 g/cm3 and a flash point of 196.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 506-24-1
- Jingsj CID
- J-24835-1
- Molecular Formula
- C18H32O2
- Molecular Weight
- 280.44500 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 46-47ºC |
|---|---|
| Boiling Point | 405.2ºC at 760 mmHg |
| Density | 0.923 g/cm3 |
| Flash Point | 196.3ºC |
| Exact Mass | 280.24000 |
| PSA | 37.30000 |
| LogP | 5.55570 |
| Refractive Index | 1.471 |
Customs & Trade Information
| HS Code | 2916190090 |
|---|---|
| Summary | 2916190090 unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:6.5%。general tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 9-Octadecynoic acid?
The CAS number of 9-Octadecynoic acid is 506-24-1.
What are the molecular formula and molecular weight of 9-Octadecynoic acid?
9-Octadecynoic acid has molecular formula C18H32O2 and molecular weight 280.44500 g/mol.
What are the upstream and downstream products of 9-Octadecynoic acid?
For 9-Octadecynoic acid, Upstream Products: oleic acid, 1-bromo-8-(tetrahydropyranyloxy)octane, 8-Bromo-1-octanol; Downstream Products: Suberic acid, Azelaic acid, Nonanoic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "9-Octadecynoic acid (CAS 506-24-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-24835-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.